EP 0925423 B1 20031112 - APPARATUS AND METHOD FOR PERFORATING AND STIMULATING A SUBTERRANEAN FORMATION
Title (en)
APPARATUS AND METHOD FOR PERFORATING AND STIMULATING A SUBTERRANEAN FORMATION
Title (de)
VORRICHTUNG UND VERFAHREN ZUM PERFORIEREN UND STIMULIEREN EINER GESTEINSFORMATION
Title (fr)
APPAREIL ET PROCEDE DESTINES A PERFORER ET STIMULER DES COUCHES SOUTERRAINES
Publication
Application
Priority
- US 9712594 W 19970728
- US 71118896 A 19960909
Abstract (en)
[origin: WO9810167A1] A method and apparatus for perforating and stimulating a subterranean formation which is penetrated by a well bore (10) having casing (12) positioned therein so as to establish fluid communication between the formation and the well bore. A shell, sheath or sleeve (20) of propellant material is positioned so as to substantially encircle at least one shaped charge (40) in a subterranean well bore and is ignited due to the shock, heat and/or pressure generated from the detonated charge. Upon burning, the propellant material generates gases which clean perforations formed in the formation by detonation of the shaped charge(s) and which extend fluid communication between the formation and the well bore.
IPC 1-7
IPC 8 full level
E21B 37/08 (2006.01); E21B 43/117 (2006.01); E21B 43/1185 (2006.01); E21B 43/263 (2006.01); E21B 43/267 (2006.01)
CPC (source: EP US)
E21B 37/08 (2013.01 - EP US); E21B 43/117 (2013.01 - EP US); E21B 43/11852 (2013.01 - EP US); E21B 43/263 (2013.01 - EP US); E21B 43/267 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IE NL
DOCDB simple family (publication)
WO 9810167 A1 19980312; AU 3804097 A 19980326; BR 9711603 A 19990824; CA 2251639 A1 19980312; CA 2251639 C 20020611; CN 1080365 C 20020306; CN 1222950 A 19990714; DE 69726161 D1 20031218; EA 000780 B1 20000424; EA 199800708 A1 19990826; EP 0925423 A1 19990630; EP 0925423 A4 20001213; EP 0925423 B1 20031112; NO 318134 B1 20050207; NO 985485 D0 19981124; NO 985485 L 19990305; US 5775426 A 19980707
DOCDB simple family (application)
US 9712594 W 19970728; AU 3804097 A 19970728; BR 9711603 A 19970728; CA 2251639 A 19970728; CN 97195781 A 19970728; DE 69726161 T 19970728; EA 199800708 A 19970728; EP 97935002 A 19970728; NO 985485 A 19981124; US 71118896 A 19960909